Filter spaces from IBAN's.

app/Services/Nordigen/Conversion/Routine/GenerateTransactions.php

@@ -93,7 +93,8 @@ class GenerateTransactions
             if (in_array($type, ['reconciliation', 'initial-balance', 'expense', 'revenue'], true)) {
                 continue;
             }
-            $iban = (string) $entry->iban;
+            $iban = $this->filterSpaces((string) $entry->iban);
+
             if ('' !== $iban) {
                 app('log')->debug(sprintf('Collected IBAN "%s" (%s) under ID #%d', $iban, $entry->type, $entry->id));
                 $return[$iban] = $entry->id;
@@ -513,4 +514,61 @@ class GenerateTransactions
         app('log')->debug(sprintf('End of %s', __METHOD__));
         return $transaction;
     }
+
+    /**
+     * @param string $iban
+     * @return string
+     */
+    private function filterSpaces(string $iban): string
+    {
+        $search = [
+            "\u{0001}", // start of heading
+            "\u{0002}", // start of text
+            "\u{0003}", // end of text
+            "\u{0004}", // end of transmission
+            "\u{0005}", // enquiry
+            "\u{0006}", // ACK
+            "\u{0007}", // BEL
+            "\u{0008}", // backspace
+            "\u{000E}", // shift out
+            "\u{000F}", // shift in
+            "\u{0010}", // data link escape
+            "\u{0011}", // DC1
+            "\u{0012}", // DC2
+            "\u{0013}", // DC3
+            "\u{0014}", // DC4
+            "\u{0015}", // NAK
+            "\u{0016}", // SYN
+            "\u{0017}", // ETB
+            "\u{0018}", // CAN
+            "\u{0019}", // EM
+            "\u{001A}", // SUB
+            "\u{001B}", // escape
+            "\u{001C}", // file separator
+            "\u{001D}", // group separator
+            "\u{001E}", // record separator
+            "\u{001F}", // unit separator
+            "\u{007F}", // DEL
+            "\u{00A0}", // non-breaking space
+            "\u{1680}", // ogham space mark
+            "\u{180E}", // mongolian vowel separator
+            "\u{2000}", // en quad
+            "\u{2001}", // em quad
+            "\u{2002}", // en space
+            "\u{2003}", // em space
+            "\u{2004}", // three-per-em space
+            "\u{2005}", // four-per-em space
+            "\u{2006}", // six-per-em space
+            "\u{2007}", // figure space
+            "\u{2008}", // punctuation space
+            "\u{2009}", // thin space
+            "\u{200A}", // hair space
+            "\u{200B}", // zero width space
+            "\u{202F}", // narrow no-break space
+            "\u{3000}", // ideographic space
+            "\u{FEFF}", // zero width no -break space
+            "\x20", // plain old normal space
+        ];
+        return str_replace($search, '', $iban);
+    }
 }